Repeater for talking-machines.



W. L. LIGHTFOOT REPEA IEB FORGTALKING MCHiNES,. APPLICATIHON FILEDAPR.15. I916;

Patented May '22, 1917.

'lllllllllll Ian WITNESSES 1 3.

A TTORNEYS" WALLACE Lucwsfmenrr'oor, or BROOKLYN, NEW YORK.

Specification of Letters Z E'atent. I

:anrmmnn ron TALKING-MACHINES.

' Patented May 22, 191a.

Application filed April 15, 1916. Serial No. 91,322.

To all whom it may-concern:

Be it known that I, WALLA0E Looms Lren'rroor, a citizen of the UnitedStates, and a residentof the city of New York,

borough of Brooklyn, in the county of Kings and State of New York, haveinvented a new and Improved Repeater for Talking- Machines, of which thefollowing is a full,

clear, and exact description.

Myinvention relates to means for automatically repeating a sound recordon a talking machine. An object of the invention is to provide a simple,inexpensive, and eflicielpt icontrivance which can be attached to a ctortalking machine without anyv change or displacement of any part of themachine. A further object of the invention is to provide a device of theclass described which can be easily and quickly put into operative orinto inoperative position, and which, when secured to the talkordinaryplaying of records.

With the above and other objects in view, the nature of which will morefully appear as the description proceeds, the invention consists in thenovel construct-ion, combination and arrangement of parts as hereinfully described, illustrated and claimed. In the accompanying drawings,forming part of the application, similar characters of referenceindicate corresponding parts in both views.

Figure 1 is a plan view of a talking machine provided with an embodimentof my invention;

Fig. 2 is an elevation of my repeating mechanism showing the same inoperative position at the moment when the sound box is shifted from thecentralpart of the record to the margin thereof to repeat the rec- 0rd;and

Fig. 3 is a diagram showing the reaction of force of gravityacting onthe recorder with the goose neck, which causes the sound arm to swingacross the record.

Referring to the drawings, 3 is a bracketsecured to the top 4 of atalking machine,

, preferably by the'same screw which secures an arm extension 7 free toswing to and from a record 10. the swinging toward the record beinglimited by the lips 8 provided at the hinge of the arm 6, whereby thedownwardly extending portion 9 of the arm extension 7 is maintainedclear of the record 10 which is to be repeated.

The downward extension 9 has an end groove 11 which is to engage a cam12 mounted on the record and secured to the drivingmhaft 13 of themachine by any suitable means. The lower edge of the cam may have a feltbase to obtain better friction between the record and the cam, where bythe rotation of the cam with the record is insured. As the reproducer l6approaches the center, the sound arm 15 engages the rider 9 is in thepath of the cam 12, as

" shown in dotted lines in Fig. l. The cam engaging the groove causesthe arm extenlng machine, in no waymterferes with the gages the cam itforms an inclined plane for the goose neck and causes the arm 15 toswing on its pivot toward the margin of the record. is limited by abufi'er 19 which is adapted to come in contact with' the union 18' ofthe sound arm. The buffer 19 consists of a yielding plunger .carried byan arm 20 secured to the 'bracket 3, preferably so that the same may beswung into operative or into inoperative position. I

VVhen the rider 9 leaves the cam 12 the sound box 16 is restored toitsnormal position; and to bring the articulated arm to its normalposition, a resilient member 21 is provided, one end of which'is'secured to the arm 6 and the other to the bracket 6.

The movement of the arm The displacement of the arm G'under the' actionof the spring 21 is limited by a stop 22 provided on the bracket? Thelength of thecam l2-is such that the rising and shifting. of the needleon the reproducer takes place within one-third of a revolution of therecord, It will be notedthat when the rider 9 leaves the" cam there islittle Weight upon the arm extension7, and,

consequently, there is no undue strain on as rea ers any part of themechanism. In Fig. 2 the dotted lines show the movement of the gooseneck after it has been raised to the starting point.

The raising of the gravitationally operablerecorder 16 by the armextension 7 decomposes the force of gravity W into two oomponents,(-lacting at right angles to the inclined plane formed by the arm extension7, and P acting parallel to the plane.

until the rider of the arm extension leaves the cam, when the recorderis allowed to engage the disk.

It the repeating mechanism is not to be used, the cam 12 is removed fromthe shaft 13 and the arm extension 7 is folded over the arm 6. Thebuffer can also be shifted to the inoperative position.

While I have described the principle of operation, together with thedevice which I now consider to be the best embodiment thereof, I desireto have it understood that the device shown is merely illustrative andthat such changes may be made as are with in the scope of theappendedclaims.

I claim:

l. The combination. with a talking ma.- chine having a revoluble record,a swinging sound arm movable in a plane parallel with the record, agoose neck swinging in the arm to and from the record, a reproducercarried by the goose neck to engage the record,of a repeating devicecomprising an arm mounted to swing in a plane parallel to the record, anarm extension adapted to be disposed below the goose neck and hinged tothe arm to swing to and, item the record, a rider carried by the amt camnear the central. part of the record mounted to rotate with. the recordand adapted to engage the rider, said arm extension and arm hav ingmeans limiting the swinging movement of the arm extension toward therecord, an upward extension from said arm extension adapted to beengaged by the sound arm when the sound arm moves towardthe cen ter ofthe record, whereby the rider 1s n bought into the path or the cam, theengagement of the cam with the rider raising the arm extension On ltSlungs from the record, whereby the goose neck is swung from the record,the inclination of said arm extension causing the sound arm to swing;toward the margin of the record, wherel'iy the goose neck is allowed toswing toward the record, brlngmg the reproducer into en gagementtherewith at the margin, means for stopping the sound arm at the margin,and means for restoring the arm of the re.- peating d vice to its normalposition 2. The combination with a talking machinehaving a ievoluhlerecord, sound arm mounted to swing in a plane parallel with the record,a gravitationally operable goose neck associated with the sound arm, areproducer carried by the goose neck to engage the rccord,of a repeatermechanism comprising a bracket, an arm pivotally mounted on said bracketto swing in a plane parallel with the record, a gravitationally-operablearm extension carried by said arm and adapted to be disposed below thegoose neck, a rider extending from said arm extension, a cam mounted toparticipate in the movement oi the record and adapted to engage therider, said arm ontension having means adapted to be engaged by thesound arm when said sound. arm is moved toward the center of the record,whereby the rider is broughtinto the path of the cam, the engagement ofthe cam with the rider inclining the arm extension toward the margin ofthe record, whereby the goose neck is caused to swing from the recordthereby disengaging the reproducer from the record, the inclination ofthe arm. extension causing the sound arm to sw to the margin, a butlerfor engaging the arm at the margin, whereby said arm is stopped apredetermined position. to bring the record carried by the goose neckinto engagement with. the record at a predetermined place, and resilientmean.- restoring the arm of the repeating device to its normal position,

In combination. with a talking ma chine having a revoluble disk record,a sound arm movable across the record, and a gravitationally-operablereprodcccr car-- ricd by, the sound arm,- associated with the record andadapted to participate in the rotary movement of the record, anarticulated arm mounted toe across the record and having the articulatedportion disposed under the eprc means on. said arm lying in the pitravel of the sound arm whereby said t. arculeted arm is moved into thpath of the cam, said cam adapted to raise the articw lated portion ofthe arm whereby the reproducer is raised from the disk, the raised anticulated portion of the arm being adapted to present an inclined planewhich causes the force of gravity acting upon the reproducer to swingthe sound arm to margin of the disk, and a butter for ping the sound armat a predetermi. oil positi'on.

cam detachably by th rscsrd, 111 a lane pmalamine in a plane to. he

1 arm having sf travel 61". fihs said articulwimd whereby "said- 0engage the raproducer 1 sax-15a mmz'gixz talking mimhine 2 sound thesamad. m:-

, sail C 1 a S erabie wing 16 cam.

move tcward the and. art

mgin

Jon: the record 2m

